Come up with one example of an INTERNAL stimulus and a possible response to that stimulus AND one example of an EXTERNAL stimulus and a possible response to that stimulus. 

dude i stopped reading after the first 7 words but hey you seem real smart thats awesome have a great day

within 30 of the equator hope this

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.